--- product_id: 595816222 title: "SD175-PR 6-1/2\" Passive Radiator" brand: "dayton audio" price: "€ 86.31" currency: EUR in_stock: true reviews_count: 5 category: "Dayton Audio" url: https://www.desertcart.pt/products/595816222-sd175-pr-6-1-2-passive-radiator store_origin: PT region: Portugal --- # 6.5" driver size Long-throw suspension M5 threaded hole for tuning SD175-PR 6-1/2" Passive Radiator **Brand:** dayton audio **Price:** € 86.31 **Availability:** ✅ In Stock ## Summary > 🎵 Tune your bass, own the room. ## Quick Answers - **What is this?** SD175-PR 6-1/2" Passive Radiator by dayton audio - **How much does it cost?** € 86.31 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/595816222-sd175-pr-6-1-2-passive-radiator) ## Best For - dayton audio enthusiasts ## Why This Product - Trusted dayton audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Design:** Coated paper cone and rubber surround deliver long-lasting reliability and smooth sound. - • **Rock-Solid Stability:** Rugged stamped steel frame with rear spider keeps your setup rock steady under pressure. - • **Precision Bass Control:** Long-throw suspension ensures clean, distortion-free excursion for deep, punchy lows. - • **Versatile Compatibility:** Ideal for 3" to 6.5" active drivers, perfect for compact subwoofers and floor-standing speakers. - • **Custom Tuned Performance:** M5 threaded hole lets you easily add mass weights to dial in your perfect bass response. ## Overview The Dayton Audio SD175-PR 6-1/2" Passive Radiator enhances low-frequency response in compact speaker enclosures with a long-throw suspension and rugged frame. Featuring a coated paper cone, rubber surround, and an M5 threaded hole for customizable tuning, it’s designed for durability and precise bass control in home audio and subwoofer systems. ## Description Quick Overview The Dayton Audio DS175-PR 6-1/2" passive radiator is excellent general-purpose radiator which allows lower tuning frequencies in smaller enclosures, suitable for replacement or for new construction. Product Highlights Long-throw suspension system for clean excursion Rugged stamped frame design with rear spider for stability Coated paper cone and rubber surround Product Manuals / Spec Sheets / Downloads AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis 6 Product Description The Dayton Audio DS175-PR 6-1/2" passive radiator is an excellent general-purpose radiator suitable for replacement or for new construction. A built-in mass disc offers a good starting point for most designs, and a convenient M5 threaded hole (screw included) allows different types of weights to be added if desired. Cosmetically and mechanically, the passives match the Designer Series line of drivers, with a poly coated paper cone and medium-roll rubber surround for clean excursion and long life. The possibilities with these passives are endless, from floor standing two-ways to small active/passive subwoofer systems. Recommended for use in passive radiator enclosure alignments with active drivers from 3" to 6.5" in diameter. Dual passive radiators are recommended for use with 6.5" active drivers. Specifications: • Fs: 24.5 Hz • Vas: 27.1 liters • Qms: 5.57 • Cms: 1.15 mm/N • Rms: 1 kg/s • Mms: 36.6 g • Sd: 128.7 sq. cm. • Xmax: 8 mm • Dimensions: Overall diameter: 176.28 mm, Cutout diameter: 143 mm, Depth: 47.75 mm Note: Adding mass to the passive radiator will decrease Fs and increase Qms. Tip: As a general rule the passive radiator(s) should be able to move double the volume of air as the active woofer(s)/subwoofer(s) in the system. For example: A passive radiator system for a 6-1/2" woofer/subwoofer that has 8mm of X-max would require 2-6-1/2" passive radiators with 8mm of X-max. For single passive radiator systems, it is common to use a passive that is larger than the active woofer(s)/subwoofer(s). Product Details Speaker Series Designer Series Model Number DS175-PR List Price $17.99 Color Black Unit of Measure Each UPC 848791001857 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 0.7 Speaker Type Passive Radiator Nominal Diameter 6.50" Power Handling (max) -- Continuous Program Power -- Sensitivity -- Frequency Response -- Voice Coil Diameter -- Magnet Weight -- DC Resistance (Re) -- Voice Coil Inductance (Le) -- Resonant Frequency (Fs) 24.5 Hz Mechanical Q (Qms) 5.57 Electromagnetic Q (Qes) -- Total Q (Qts) -- Diaphragm Mass Inc. Airload (Mms) 36.6g Moving Mass Of Diaphragm (Mmd) -- Mechanical Compliance of Suspension (Cms) 1.15 mm/N Surface Area Of Cone (Sd) 128.7 cm² Volume of Displacement (Vd) 102.9 cm³ BL Product (BL) -- Compliance Equivalent Volume (Vas) 27.1 liters Maximum Linear Excursion (Xmax) 8 mm Drivers Mechanical Losses (Rms) 1 kg/s Cone / Diaphragm Material Paper Cone Entry / Exit Diameter -- Surround Material Rubber Voice Coil Wire Material -- Voice Coil Former -- Basket/Frame Material Steel Magnet Material -- Overall Outside Diameter 176.28 mm Overall Depth 47.75 mm Baffle Cutout Diameter 143 mm # Mounting Holes 5 Mounting Hole Diameter -- Bolt Circle Diameter -- Product Weight -- Review: Dayton Audio DS175-PR 6-1/2" Passive Radiator - macht was er soll :) Xmax 8mm könnte mehr sein :) Review: Pairs well with Skar 6.5" subwoofer ## Features - Long-throw suspension system for clean excursion - Rugged stamped frame design with rear spider for stability - Durable coated paper cone and rubber surround - M5 threaded hole simplifies adding mass for lower tuning frequency ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00Q3MARV6 | | Age Range Description | Adult | | Antenna Location | construction | | Audio Driver Size | 6.5 Inches | | Audio Driver Type | Dynamic Driver | | Audio Output Mode | Surround | | Battery Average Life | 8 Hours | | Box Contents | Screw | | Brand | Dayton Audio | | Brand Name | Dayton Audio | | Colour | Black | | Compatible Devices | Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop | | Compatible with Vehicle Type | Car | | Connectivity Protocol | Bluetooth | | Connectivity Technology | Wired, Bluetooth | | Control Method | Voice | | Controller Type | Voice Control | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.2 out of 5 stars 29 Reviews | | Enclosure Material | Paper | | Global Trade Identification Number | 00848791001857 | | Is Waterproof | FALSE | | Item Weight Unit of Measure | 318 g | | MP3 player | No | | Manufacturer | Dayton Audio | | Material | Paper | | Model Name | DS175 PR | | Model Number | SD175-PR | | Mounting Type | Flush Mount | | Network Connectivity Technology | Wired, Bluetooth | | Number of Audio Channels | 5.1 | | Number of Items | 1 | | Power Source | Corded Electric | | Product Features | SD Card, Subwoofer | | Series Number | 175 | | Speaker Size | 6.5 Inches | | Speaker Type | Subwoofer | | Specific Uses For Product | home audio systems, studio monitors, music production, home theaters | | Subwoofer Connectivity Technology | Wired | | Subwoofer Speaker Diameter Unit of Measure | 6.5 Inches | | Tweeter Driver Diameter | 1 Inches | | UPC | 848791001857 | | Unit Count | 1.0 Count | | Wireless Technology Type | Bluetooth | | Woofer Driver Diameter | 6.5 Inches | ## Product Details - **Audio Output Mode:** Surround - **Brand:** Dayton Audio - **Connectivity Technology:** Wired, Bluetooth - **Material:** Paper - **Mounting Type:** Flush Mount ## Images ![SD175-PR 6-1/2" Passive Radiator - Image 1](https://m.media-amazon.com/images/I/71Ifdm4vB1L.jpg) ![SD175-PR 6-1/2" Passive Radiator - Image 2](https://m.media-amazon.com/images/I/71BVMH+tOPL.jpg) ![SD175-PR 6-1/2" Passive Radiator - Image 3](https://m.media-amazon.com/images/I/810skMYZZNL.jpg) ![SD175-PR 6-1/2" Passive Radiator - Image 4](https://m.media-amazon.com/images/I/81glzRzSDYL.jpg) ## Questions & Answers **Q: What size hole do you need for it?** A: I made a 6 inch circle and cut it out. It fit fine. Don’t know why they call this a 6.5 radiator **Q: Can this be used as a stand alone sub in a very small enclosed?** A: No it can not it can not be powered. **Q: What is the x-max?** A: 1 **Q: How many do you get? One or two?** A: 1 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Dayton Audio DS175-PR 6-1/2" Passive Radiator *by M***2 on 27 February 2020* macht was er soll :) Xmax 8mm könnte mehr sein :) ### ⭐⭐⭐⭐⭐ Pairs well with Skar 6.5" subwoofer *by E***G on 16 September 2023* ### ⭐⭐⭐⭐ Basic passive radiator. Slightily out of spec. *by G***I on 12 January 2026* ## Frequently Bought Together - Dayton Audio DS175-PR 6-1/2" Designer Series Passive Radiator - Dayton Audio TCP115-8 4" Treated Paper Cone Midbass Woofer 8 Ohm - CCeCCe 2 Pack 4 Inch Woofer Vibrating Membrane Iron Rubber Vibration Diaphragm Plate Replacement Passive Radiator Film for Bass Speaker Subwoofer Loudspeaker Audio DIY Repair --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/595816222-sd175-pr-6-1-2-passive-radiator](https://www.desertcart.pt/products/595816222-sd175-pr-6-1-2-passive-radiator) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-24*